If you thought PetVille's Halloween celebrations were over with mix-and-match costumes and a sprawling list of decorations, then you're in for a treat with the new Haunted Mansion Collection. While much smaller than Zynga's previous Halloween additions, this update brings some of the most interesting Halloween decorations I've seen yet.

If I were you, I'd save up all the Pet Cash I could for that Grandma Ghost. She might look simple enough, but stare for a bit longer and she disappears only to materialize again in and creepy, endless knitting trance. Not to mention she'll only stick around for another eight days. Casper's got noting on old Granny.